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GeForce GTX 860M vs Radeon HD 4750

Intro

The GeForce GTX 860M has a GPU core clock speed of 797 MHz, and the 4096 MB of GDDR5 RAM runs at 1000 MHz through a 128-bit bus. It also features 1152 SPUs, 96 TAUs, and 16 Raster Operation Units.

Compare those specs to the Radeon HD 4750, which makes use of a 40 nm design. AMD has clocked the core frequency at 730 MHz. The GDDR5 RAM is set to run at a frequency of 800 MHz on this particular model. It features 640(128x5) SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M 45 Watts
Radeon HD 4750 75 Watts
Difference: 30 Watts (67%)

Memory Bandwidth

Performance-wise, the GeForce GTX 860M should theoretically be quite a bit better than the Radeon HD 4750 overall. (explain)

GeForce GTX 860M 64000 MB/sec
Radeon HD 4750 51200 MB/sec
Difference: 12800 (25%)

Texel Rate

The GeForce GTX 860M should be a lot (more or less 228%) more effective at anisotropic filtering than the Radeon HD 4750. (explain)

GeForce GTX 860M 76512 Mtexels/sec
Radeon HD 4750 23360 Mtexels/sec
Difference: 53152 (228%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 860M is a better choice, though not by far. (explain)

GeForce GTX 860M 12752 Mpixels/sec
Radeon HD 4750 11680 Mpixels/sec
Difference: 1072 (9%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce GTX 860M

Amazon.com

Check prices at:

Radeon HD 4750

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 860M Radeon HD 4750
Manufacturer nVidia AMD
Year March 12 2014
Code Name GM107 RV740
Memory 4096 MB 512 MB
Core Speed 797 MHz 730 MHz
Memory Speed 4000 MHz 3200 MHz
Power (Max TDP) 45 watts 75 watts
Bandwidth 64000 MB/sec 51200 MB/sec
Texel Rate 76512 Mtexels/sec 23360 Mtexels/sec
Pixel Rate 12752 Mpixels/sec 11680 Mpixels/sec
Unified Shaders 1152 640(128x5)
Texture Mapping Units 96 32
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 826 million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 860M

Amazon.com

Check prices at:

Radeon HD 4750

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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